/*-
 * SSLsplit - transparent SSL/TLS interception
 * https://www.roe.ch/SSLsplit
 *
 * Copyright (c) 2009-2019, Daniel Roethlisberger <daniel@roe.ch>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef NAT_H
#define NAT_H

#include "attrib.h"

#include <sys/types.h>
#include <sys/socket.h>

#include <event2/util.h>

typedef int (*nat_lookup_cb_t)(struct sockaddr *, socklen_t *, evutil_socket_t,
                               struct sockaddr *, socklen_t);
typedef int (*nat_socket_cb_t)(evutil_socket_t);

int nat_exist(const char *) WUNRES;
int nat_used(const char *) WUNRES;
nat_lookup_cb_t nat_getlookupcb(const char *) WUNRES;
nat_socket_cb_t nat_getsocketcb(const char *) WUNRES;
int nat_ipv6ready(const char *) WUNRES;

const char *nat_getdefaultname(void) WUNRES;
void nat_list_engines(void);
int nat_preinit(void) WUNRES;
void nat_preinit_undo(void);
int nat_init(void) WUNRES;
void nat_fini(void);
void nat_version(void);

#endif /* !NAT_H */

/* vim: set noet ft=c: */
